Thanks for your reply Dragon, yes i was already working on a hardware solution spying the serial connexion, and yes i'm more confortable with windows coz im not a linux expert and i found many difficulties using commands as a novice, and same that i have to work on windows coz the project concerns windows users,
but at the same time i wanted to do the spying stuff with a linux intern software solution coz i like it but... im not able to do so far...
Now i already acheaved some good results using hard solution and i'm moving on.
thanks for your attention